Jamno, Poland experiences average highs of 13°C (55°F) and lows of 7°C (45°F) throughout the year. Rainfall is moderate, averaging about 11 rainy days per month. Average highs have stayed broadly stable across the available records.
Jamno, Poland Weather & Climate 2026
Monthly climate averages for Jamno, Poland. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Feb–Nov 
Wetter season: Jan–Dec At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
4.8/10
Best: May, June, July, August, September
UV Index
3
Low
Temperature 13°C / 7°C
Feels Like 10°C / 4°C
Rainy Days 11
Rainfall 61 mm
Sunshine 8 h
Humidity 79%
Wind Speed 23 km/h
Dew Point 6°C
Snow Days 5 days
Frost Days 9 days
Hottest Month
23°C
August
Avg Low15°C
Rain12days
Coldest Month
0°C
January
Avg High3°C
Rain14days
Driest Month
8days
April
Avg High12°C
Avg Low4°C
Windiest Month
26 km/h
January (Gusts 45)
Sea Temperature
2°C – 20°C
Warmest water: August (
20.4°C
)
Worst Time to Visit
Consider avoiding January, February, November, December due to very cold temperatures, frequent rain.
Sun Position
Sunrise 04:22
Daylight 17.2h
Sunset 21:32
Live conditions—
Jamno on the map · live conditions
Jamno, Poland
- Continent
- Europe
- Country
- Poland
- City
- Jamno
- Population
- 521
- Coordinates
- 54.25°, 16.17°
Seasonal Breakdown
Spring
Mar–May
Avg High 12°C
Avg Low 5°C
Rain 9 days/mo
1/3 best months
Summer
Jun–Aug
Avg High 22°C
Avg Low 15°C
Rain 12 days/mo
3/3 best months
Autumn
Sep–Nov
Avg High 13°C
Avg Low 8°C
Rain 12 days/mo
1/3 best months
Winter
Dec–Feb
Avg High 4°C
Avg Low 0°C
Rain 12 days/mo
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
HighLowShaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: 3°C / 0°C . Feb: 5°C / 0°C . Mar: 8°C / 1°C . Apr: 12°C / 4°C . May: 17°C / 9°C . Jun: 21°C / 14°C . Jul: 22°C / 15°C . Aug: 23°C / 15°C . Sep: 19°C / 13°C . Oct: 14°C / 9°C . Nov: 8°C / 4°C . Dec: 5°C / 1°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 69 mm. Feb: 56 mm. Mar: 37 mm. Apr: 36 mm. May: 48 mm. Jun: 63 mm. Jul: 105 mm. Aug: 72 mm. Sep: 62 mm. Oct: 78 mm. Nov: 55 mm. Dec: 53 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 86%. Feb: 83%. Mar: 78%. Apr: 74%. May: 71%. Jun: 72%. Jul: 76%. Aug: 74%. Sep: 77%. Oct: 82%. Nov: 86%. Dec: 88%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 26 km/h . Feb: 25 km/h . Mar: 22 km/h . Apr: 23 km/h . May: 21 km/h . Jun: 21 km/h . Jul: 21 km/h . Aug: 20 km/h . Sep: 21 km/h . Oct: 25 km/h . Nov: 23 km/h . Dec: 25 km/h .
Sunshine
Sunshine
Sunshine: Jan: 3h. Feb: 5h. Mar: 7h. Apr: 10h. May: 12h. Jun: 13h. Jul: 12h. Aug: 11h. Sep: 9h. Oct: 6h. Nov: 3h. Dec: 2h.
Sea Temperature
Sea Temperatureswim
Line chart showing monthly sea temperature. Jan: 3°C . Feb: 2°C . Mar: 4°C . Apr: 8°C . May: 12°C . Jun: 17°C . Jul: 20°C . Aug: 20°C . Sep: 19°C . Oct: 13°C . Nov: 8°C . Dec: 5°C .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 1. Feb: UV 1. Mar: UV 3. Apr: UV 4. May: UV 6. Jun: UV 6. Jul: UV 6. Aug: UV 5. Sep: UV 4. Oct: UV 2. Nov: UV 1. Dec: UV 1.
Monthly Daylight Hours
Daylight12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy Oppressive
Snow Days
Snow DaysSnowfall
Snow Days: Jan: 10 days. Feb: 6 days. Mar: 3 days. Apr: 1 days. May: 0 days. Jun: 0 days. Jul: 0 days. Aug: 0 days. Sep: 0 days. Oct: 0 days. Nov: 2 days. Dec: 5 days.
Climate Trends
Average highs have stayed broadly stable across the available records. Average rainfall is trending drier by about 14 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Jul 2025 · 22°C | Aug · 23°C |
| Coldest month | Feb 2025 · -1°C | Jan · 0°C |
| Wettest month | Oct 2025 · 100 mm | Jul · 105 mm |
| Windiest month | Jan 2025 · 27 km/h | Jan · 26 km/h |
Month-by-Month Weather Table
January
Poor 
February
Poor March
Poor April
Fair May best
Excellent June best
Excellent July best
Excellent August best
Excellent September best
Good October
Fair November
Poor December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 3°C / 0°C | -1°C / -5°C | 14days (69 mm) Wet | 2.7h Poor | 86% Very Muggy | 0.8 Low | Poor | View Details |
| February | 5°C / 0°C | 0°C / -5°C | 11days (56 mm) Wet | 5.2h Fair | 83% Humid | 1.4 Low | Poor | View Details |
| March | 8°C / 1°C | 4°C / -3°C | 9days (37 mm) Wet | 7.1h Good | 78% Humid | 3 Moderate | Poor | View Details |
| April | 12°C / 4°C | 8°C / 0°C | 8days (36 mm) Wet | 10.4h Excellent | 74% Muggy | 4.4 Moderate | Fair | View Details |
| May best | 17°C / 9°C | 15°C / 6°C | 10days (48 mm) Wet | 12.3h Excellent | 71% Muggy | 5.6 High | Excellent | View Details |
| June best | 21°C / 14°C | 21°C / 12°C | 10days (63 mm) Wet | 13.2h Excellent | 72% Muggy | 6 High | Excellent | View Details |
| July best | 22°C / 15°C | 21°C / 14°C | 14days (105 mm) Wet | 12.2h Excellent | 76% Humid | 5.6 High | Excellent | View Details |
| August best | 23°C / 15°C | 22°C / 15°C | 12days (72 mm) Wet | 11h Excellent | 74% Muggy | 4.9 Moderate | Excellent | View Details |
| September best | 19°C / 13°C | 18°C / 11°C | 10days (62 mm) Wet | 8.7h Good | 77% Humid | 3.8 Moderate | Good | View Details |
| October | 14°C / 9°C | 11°C / 5°C | 14days (78 mm) Wet | 5.7h Fair | 82% Humid | 2 Low | Fair | View Details |
| November | 8°C / 4°C | 4°C / 0°C | 11days (55 mm) Wet | 3.4h Poor | 86% Very Muggy | 1.1 Low | Poor | View Details |
| December | 5°C / 1°C | 0°C / -3°C | 12days (53 mm) Wet | 2.2h Poor | 88% Very Muggy | 0.6 Low | Poor | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Jamno are May, June, July, August, September, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Jamno, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Jamno is August, with average daytime highs of 23°C (73°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Jamno is January, with average overnight lows of 0°C (31°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Jamno is July, averaging 105mm of precipitation across 14 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Jamno runs through January, July, October, August, with the heaviest rainfall in January. Based on 10-year averages for Jamno.
Jamno receives approximately 94 sunshine hours per year. The sunniest month is June with around 13 hours. Based on climate data for Jamno.
The least favorable months to visit Jamno are January, February, November, December, primarily due to very cold temperatures, frequent rain. For the best conditions, consider May, June, July, August, September instead.
The annual average UV index in Jamno is 3, classified as moderate. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Jamno is 79%, classified as humid. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Sea temperatures in Summer average 11°C (52°F), which most swimmers will find too cold without a wetsuit.
Yes, Jamno receives snow. Months with snowfall average 5 snow days and 5 cm (2 in) of accumulation, with about 9 frost days during winter.
Average wind speeds in Jamno are 23 km/h (14 mph). The windiest month is January with peak winds reaching 26 km/h (16 mph) (gusts up to 45 km/h / 28 mph).
Jamno averages 3 clear-sky days per month with overall cloud cover around 66%. The clearest skies occur in May.
The annual average dew point in Jamno is 6°C (43°F), which feels dry and comfortable. Outdoor activities are comfortable year-round from a humidity standpoint.
Jamno has a Oceanic climate, classified as Cfb under the Köppen system. Temperate climates have mild winters and warm summers, with rainfall spread across the year and four distinct seasons.
The 'feels like' temperature in Jamno ranges from 4°C (39°F) to 10°C (50°F) on average. Wind chill makes winters feel noticeably colder than the actual temperature — layered clothing is recommended.
Yes, June is a great time to visit Jamno. It earns a climate score of 8.3/10 with Excellent.
For June in Jamno, pack Umbrella, Waterproof jacket, Sunscreen (SPF 30+), Sunglasses, Comfortable walking shoes. With average highs of 21°C (71°F) and 10 rainy days, these essentials will keep you comfortable.
Data Source
Climate data derived from ERA5 reanalysis (ECMWF), averaged over 2016–2025. Sea surface temperature from marine reanalysis data. Climate scores and seasonal estimates are computed by WorldStats.
Last updated: